Astronaut Eugene Cernan drives the lunar rover during Apollo 17, the last manned mission to the moon in 1972.
NPR's Don Gonyea Reports on Bush's Space Plans
President Bush is expected to announce next week a major recommitment to the U.S. space program. Senior officials say the president will call for establishing a permanent human settlement on the moon and an eventual manned flight to Mars. Critics say the plan, which could cost at least $1 trillion, is unadvisable at a time of record deficits. Hear NPR's Don Gonyea and NPR's Richard Harris.